JPH047701Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a reaping machine for long culm crops.

In order to harvest long-culm crops such as corn, maize, and sorghum that are used as feed, the crops growing in the field are first cut near the base of the plant.

Reapers have been proposed that mechanically perform the cutting operation and transport the cutting to one side after cutting.

The above-mentioned reaper is provided with a cutting mechanism at the front lower part of the traveling vehicle body in the traveling direction, and a conveying mechanism is provided above the cutting mechanism to convey the cut crop to one side of the traveling vehicle body in the traveling direction. At the delivery end side of the conveyance mechanism, a dropper bar extending from the traveling vehicle body to the side side crosses the conveyance path of the crops, and once the transported crops are held by the dropper bar, they are bundled and placed on the ground. Some have a dropper mechanism for dropping them.

However, in the above-mentioned conventional reaper, the bar extending outward from the traveling vehicle body cannot be folded toward the traveling vehicle body, so when the reaper is traveling without operation, the dropper bar of the dropper mechanism is not aligned with the vehicle body. If the dropper bar protrudes from the sides and becomes an obstacle to running, and even when working, if the dropper bar protrudes from the machine body more than necessary, it will interfere with the crops and become an obstacle to running, making it impossible to cut down the grass. This has made it impossible to work with crops such as maize, which has a high vegetation height.

The present invention was devised in view of the above-mentioned circumstances, and its characteristics are that it is a reaping machine that cuts and transports long culm crops such as corn, maize, and sorghum near the base of the plant; A cutting mechanism is provided at the front lower part of the running direction, and above the cutting mechanism,
A conveying mechanism for conveying the cut crop A to one side in the traveling direction is provided, and a dropper is provided at the sending end side of the conveying mechanism to temporarily hold the conveyed crop with a dropper bar and then bundle it and drop it on the ground. In the reaper provided with the mechanism, a working posture in which a dropper bar is provided on the traveling vehicle body side and is extended from the traveling vehicle body to the one side to cross the crop conveyance path;
It is folded around an axis approximately parallel to the direction of transport of crops on the side of the traveling vehicle body, and is set so as to be able to freely change its posture between a non-working position and a non-working position where it separates from the crop conveyance path and does not protrude outward from the traveling vehicle body. At the point.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings of FIGS. 1 to 19.

In FIGS. 1 to 3 showing the overall configuration, 1
is a reaper, and in this embodiment, a cutting mechanism 3 that rotates around a vertical axis is provided at the front lower part of a hand-shaped traveling vehicle body 2 in the running direction, and above the cutting mechanism 3 there is a main blade at a vertical interval. In the example, there are two stages of transport mechanisms 4 and 5.
The main structure is provided so that it can freely circulate around the vertical axis.

The running vehicle body 2 is equipped with an engine 6, which enables transmission of power to a pair of left and right drive wheels 7, and also has an engine 6 as shown in FIG.
The cutting mechanism 3 and the plurality of conveyance mechanisms 4 and 5 can be respectively driven by a transmission mechanism which will be described later with reference to FIG.

A machine frame 8 made of a bar or the like is attached to the front part of the traveling vehicle body 2, and gauge wheels 9 made of rubber wheels are attached to attachment rods 10 on the front left and right sides of the cutting mechanism 3. A divider attachment rod 11 is attached to each tip (front end) of the rod 10, and a divider 12 is attached to each of the attachment rods 11.

Each of the transport mechanisms 4 and 5 carries a crop A (12th
The feed starting end portions 4A and 5A of the conveying mechanisms 4 and 5 are located above the cutting mechanism, and the feed starting end portion 4A on the upper stage side is configured to convey the feed starting end portion 4A on the lower stage side. It protrudes forward in the running direction as shown by reference numeral B in FIG. 1 with respect to the side feeding start end 5A.

The transport mechanisms 4 and 5 are parallel to each other in the vertical direction, and are tilted forward and downward, for example, by about 15 degrees, as shown in FIG. 1, and further,
Each delivery end 4B, 5B is located on a substantially vertical plane. Then, the feed starting end portions 4A, 5
Conveying parts 4C and 5 between A and the sending end parts 4B and 5B
As shown in FIG. 3, C is configured as a straight slope where the delivery ends 4B, 5B are on the rear side with respect to the feed start ends 4A, 5A, and the transport parts 4C, 5C are each provided with a guide made of a bar. Mechanisms 13 and 14 are attached.

Reference numeral 15 denotes a guide deck, which extends from the cutting mechanism 3 to one side, that is, to the rotational direction side of the cutting mechanism 3, and is configured as a groove-shaped path 15A, and supports the cut crop A while supporting the conveying section 4C. , 5C.

16 is a dropper mechanism, and the delivery end portion 4B,
The dropper mechanism 16 is foldably provided on the upper part of the feed direction side of the guide deck 15.
The lower end of the crop A is supported by the lower end of the crop A, and when a predetermined amount of the crop A is held, its weight automatically windrows it onto the field.

Next, with reference to FIGS. 4 to 19, specific configurations of the cutting mechanism, conveyance mechanism, guide deck, dropper mechanism, etc. will be described in detail.

4 to 8, reference numeral 17 denotes a winding transmission mechanism, in which a belt 20 is stretched around a driving pulley 18 and a driven pulley 19 that are interlocked with the engine 6 side.
The arm 22 of the pulley is connected to the handle 23 side by a Bowden cable 24.

The driven pulley 19 is linked via a bevel gear mechanism 25 to a gear transmission mechanism 26 of the cutting mechanism and the conveying mechanism.

That is, as shown in FIGS. 7 and 8, the large gear 28 of large and small intermediate gears 28 and 29 whose shaft center is concentric with the output gear 27 of the bevel gear mechanism 25 rotating around the vertical axis is interlocked with the output gear 27 of the bevel gear mechanism 25 rotating around the vertical axis. Cutter 3 on gear 28
The drive gear 30 of A is engaged with the small gear 29 in a speed-increasing relationship, and the conveying drive gear 31 is engaged with the small gear 29 in a decelerating relationship.

The gear transmission mechanism 26 is housed in a box 32, and the box 32 is attached to the front lower part of the vehicle body 2.

In FIG. 6, 33 is a case housing the transmission mechanism of the driving wheels 7, and 34 is its axle. A pipe 35 such as a hard resin pipe or a metal pipe is fitted over the axle 34, and , prevents foreign objects from getting entangled.

As shown in FIG. 6, the cutter 3A is of a rotary type with a blade portion on the outer periphery that is driven around a vertical axis tilted forward, for example, at an angle of about 15 degrees, and the cutter 3A is of a rotary type with a blade portion on the outer periphery that is tilted forward, for example, at an angle of approximately 15 degrees.As shown in FIG. The box 32 is covered with a cover 36.

A support post 37 is erected from the machine frame 8, and a support post 38 made of a tube material that is fitted onto a drive shaft 33 interlocked with the drive gear 31 is also erected from the box 32. Board 3
9 and 40 are supported in a forward-slanted manner parallel to each other at an interval in the vertical direction via struts 37 and 38.

The drive sprocket wheels 41, 42 of the transport mechanisms 4, 5 are attached to the drive shaft 33, and the driven wheels 43, 44, which constitute the feed starting ends 4A, 5A of the transport mechanisms 4, 5, respectively, are attached to the drive shaft 33.
Driven wheels 45 and 46 constituting the delivery end portions 4B and 5B are mounted on the corresponding substrates 39 and 40, respectively, and the wheels 41 and 4 of the transport mechanism 4
3, 45 and wheels 42, 44 of the transport mechanism 5,
46 are arranged triangularly as shown in FIGS. 4 and 5, and each wheel 41, 43, 45 has a chain 4.
7, and a chain 48 is suspended from each wheel 42, 44, 46, respectively.

Each of the chains 47 and 48 has triangular protrusions 47A and 48A formed on its chain plate, respectively, and the crops can be transported by engagement of these protrusions 47A and 48A.

Further, each chain 47, 48 has a retractable claw 4 having a thin tip formed under a predetermined pitch.
9.50 are arranged in a row.

In addition, each wheel 43, 44 on the side of the feeding start end 4A, 5A is configured such that the tension of the chains 47, 48 can be adjusted to be stronger or weaker with a screw means by means of bullet adjustment mechanisms 51, 52. Guide plates 53 and 54 are arranged on three sides of the inner peripheral surface of the
Further, in the conveyance parts 4C and 5C, the protrusions 47A and 48A of the chains 47 and 48 and the retractable claws 49 and 50 protrude, but covers 55 and 56 are attached to other parts from the viewpoint of preventing foreign objects from getting entangled. , 56 side, delivery guide bodies 57, 58 are attached to both sides of the delivery ends 4B, 5B, respectively.

Guide mechanisms 13 and 14 are provided corresponding to the conveyance sections 4C and 5C, respectively, and each of the guide mechanisms 13 and 14 has a support 59 erected from one side of a gauge wheel mounting rod 10 connected to the machine frame 8. , the pillar 5
A mounting plate 60 is fixedly attached to the upper end of the mounting plate 9.
Another support 61 is erected at the top of the support 61, and a mounting plate 62 is fixedly attached to the upper end of the support 61.

A pair of support rods 65, 66 including guide rods 63, 64 are inserted into each mounting plate 60, 62 so as to be able to move back and forth in the axial direction, and buffer springs 67, 68 are wound around them. Note that holes are formed in the support rods 65 and 66 at intervals in the length direction, and the springs 67 and 66 are inserted between the holes.
The strength of 68 forces can be adjusted.

Each of the support rods 65 and 66 has a guide rod 6.
3 and 64 are pivotally mounted 69 and 70, and each guide rod 63 and 64 has a guide portion 6 to the cutting mechanism 3 at one end thereof.
3A, 64A are formed with guide parts 63B, 64B to the dropper mechanism 16 at the other end, respectively, and in the transport parts 4C, 5C of the transport mechanisms 4, 5, there are two stages, upper and lower, respectively, and each retracting claw 49 is formed in between. , 50 are allowed to pass through.

Note that the guide parts 63A and 64A have grips 7.
1 and 72 are formed to allow the guide rods 63 and 64 to swing when crop clogging occurs in the conveyance sections 4C and 5C.

Further, the guide parts 63B and 64B can be folded and held on the body side via a bending part 73, as shown in FIG. 14 by the guide part 63B. This makes it possible to avoid running obstacles caused by the guide portions 63B and 64B that protrude outwardly during so-called in-between work and when running on the road.

The guide deck 15 has the cutting mechanism 3 as the starting end and the dropper mechanism 16 as the ending end.
On the further front side, a first mounting rod 10 of the gauge wheel 9 is attached.
As shown in FIG. 3 and FIG. 14, a guide plate 74 is attached, and the mounting rod 10 and the like serve as guides for the lower part of the crop.
A rubber wheel is rotatably supported on a bracket 77 connected to the gauge support 75, and the gauge support 75 is fitted into the support cylinder 76 at a predetermined interval in the height direction. By allowing the pin 79 to be inserted into and removed from the hole 78 formed in the support column 75,
The height of the gauge wheel 9 is adjustable.

Further, the divider mounting rod 11 is pivotally attached to the mounting rod 10 via a pin 80 and a long hole 81 with the pin 80 as a fulcrum via a pin or bolt 82, so that the divider 12 can be bent in the vertical direction. The upper part of the divider 12 is supported on the fixed side via a screw adjusting body 83.

The guide deck 15 is provided corresponding to the lower part of the conveyance parts 4C and 5C, and is connected to a stepped section following the ramp 74A via the guide plate 74 in the direction of rotation of the cutter 3A of the cutting mechanism 3 (arrow X in FIG. 13). 84 was formed,
A triangular notch 85 is formed in the guide plate 36 in correspondence with the step 84 . That is, the receiving plate 86 of the guide deck 15 is formed into a groove shape so that the conveying portion 4C,
5C, it extends outward from the cutting mechanism 3 as a starting end, and a stepped portion 84 is formed on the starting end side, and the cutter 3 of the cutting mechanism 3
A notch 85 is formed on the rotation leading side of the outer periphery of the blade, which is the rotation center of A, and dust and dirt are removed through the notch 85.
Other foreign matter can be discharged and escaped.

Thus, the cut crop A is supported by the stepped portion 84 as shown in FIG. 12, and its tip is received by the dropper mechanism 16.

As shown in FIGS. 14 to 18, the dropper mechanism 16 is attached to its mounting plate 8 via a support 87 corresponding to the delivery side of the delivery ends 4B, 5B of the transport mechanisms 4, 5.
8 is supported on the fuselage side.

The mounting plate 88 has an arm 89 that swings around a vertical axis.
The arm 89 is interlocked with a clutch lever 91 which rotates about a horizontal axis via an interlocking rod 90.

Further, a U-shaped dropper bar 92 is provided at the tip of the mounting plate 88 and can be freely switched between a working position C and a lying position D via a clutch cam 93, and a cam portion 93A of the clutch cam 93 is connected to a cam follower 91A of the clutch lever 91 by a spring 94. It is biased in the direction of engagement.

On the other hand, a counting mechanism 95 is provided in the upper conveying mechanism 4 of the conveying mechanisms 4 and 5.
An arm 89 is interlocked with the arm 89 via a swing lever 96 and an interlocking rod 97.

That is, the counting mechanism 95 is provided with a star-shaped rotating body 98 rotatable around a vertical axis, and the star-shaped rotating body 98
A pin 99 protruding from the lower part of the chain 47 shown in FIG. 6 is attached to the outer periphery of the chain 47 and is detachable therefrom. In other words, one rotation of the chain 47 causes the pin 99 to rotate the star-shaped rotating body 98 by one pitch.

In this example, six pin holes 100 are formed in the star-shaped rotating body 98 at predetermined intervals in the circumferential direction, and pins 101 can be freely inserted into and removed from the pin holes 100.

Then, the pin 101 swings the swinging lever 96 against a spring (not shown), thereby pulling the interlocking rod 97 and placing the clutch lever 91 in the clutch disengaged position as shown by the chain line in FIG. The posture of the dropper bar 92 is changed from the working position C to the lodging position D by its own weight and the weight of the crop A acting on it, thereby making it possible to windrow the crop A.

Note that the dropper bar 92 has its rotation support shaft 92.
A is provided with an arm 103 having a pin 102, and this arm 103 can be freely engaged with and detached from a pair of pin holes 104 provided in the clutch cam 93 on the fixed side about a pivot shaft 92A. That is, a spring 105 that biases the pin 102 in the engagement direction is wound around the pivot shaft 92A, and the dropper bar 92 is pushed against the spring 105 so as to separate the pin 102 from the pin hole 104, and the other Pin 1 in pin hole 104
By selectively engaging 02, the dropper bar 92 is folded upward from the working position C, and is made into an upright shape on the traveling vehicle body 2 side.
The posture can be changed freely to the non-working posture shown in Figure 9.

That is, the dropper bar 92 is placed in a working posture D that traverses the transportation path of the crops A in a substantially perpendicular manner and on the traveling vehicle body 2 side, with the rotation support shaft 92A located on the axis substantially parallel to the transportation method of the crops A as a fulcrum. It is provided so that it can be freely changed into a non-working position in which it is folded up and does not protrude outward from the traveling vehicle body 2 and is separated from the conveyance path of the crops A.

In addition, in the above embodiment, the transport mechanisms 4, 5
The corresponding guide mechanisms 13 and 14 can be arranged in multiple stages, two or more stages as shown in the figure, and in this case, the end of the drive shaft 33 is connected as a spline shaft via a coupling.

It is also possible to provide a brake mechanism on the input shaft of the disconnection mechanism 3, which applies a brake when the clutch is disconnected, or applies the brake using an emergency pedal.

Next, the effect will be explained.

The operator operates the handle 23 to drive the vehicle body 2 and travels through the field while driving the cutting mechanism 3 and the transport mechanisms 4 and 5, respectively.

The crops growing in the field are divided by the pair of left and right dividers 12 in both cases of so-called facing mowing and rear mowing, and the divider mounting rod 1
1. The stock is guided by the gauge mounting rod 10, and the guide part 63A of the guide mechanism 13, 14 is inserted in the middle.
64A and relative to the cutting mechanism 3.
attempts to enter. Then, the base of the crop is cut below the height set by the gauge wheel 9.

In this cutting, since the feed start end 4A of the upper conveyance mechanism 4 of the conveyance mechanisms 4 and 5 is ahead of the feed start end 5A of the lower conveyance mechanism 5 as shown by the symbol B, first, the retraction Claw 49
is actuated, and then the retractable claw 50 comes into action, and here, while the tip side of the crop is firmly grasped with the retractable claw 49, the base of the plant is attracted, and the lower part is grasped with the retractable claw 50. At this point, the cutter 3A of the cutting mechanism 3 reliably cuts the crop stock base.

Then, due to the conveying action of the upper and lower two transport mechanisms 4 and 5 and the guiding action of the corresponding guide mechanisms 13 and 14, the cut crop A rides up the ramp 74A of the guide deck 15 and is engaged with the stepped portion 84,
On the other hand, foreign objects such as dead leaves and grass are discharged from the notch 85 by the force accompanying the rotation of the cutter 3A.

In this way, the crop A that is sequentially cut and transported is supported at its lower end by the stepped portion 84 of the guide deck 15, and its leading end is received by the bar 92 of the dropper mechanism 16 in the working position D and held there. It turns out.

When the set number of crops A is held by the counting mechanism 95, the clutch lever 91 is interlocked in the clutch disengagement direction via the swing lever 96, the interlocking rod 97, etc., and the dropper bar 92 is placed in the prone position C. A predetermined number of crops A will be windrowed.

After windrowing, the spring 94 causes the clutch lever 91 and the clutch cam 93 to restore the dropper bar 92 to the working position C.

Furthermore, when performing reaping work with the crop A on both sides of the reaper 1, so-called splitting work, the dropper bar 92 becomes an upright shape on the traveling vehicle body 2 side as shown in FIGS. 17 to 19. In the folded non-working position.

As a result, the dropper mechanism 16 no longer performs its function, and the transported crop A is dropped to the ground without being temporarily held by the dropper bar 92. However, by setting the dropper bar 92 to a non-working position, 9
2 and the crop A that has grown on the side of the dropper bar 92 in the reaping machine 1 is reduced, making it easier to perform the splitting operation. Even if I fall down,
The worker can be protected from the fallen crop A by the dropper bar 92 in the non-working position.

FIG. 20 shows a reaping machine different from that of the present invention.
38 and 110 have a nested structure that can be expanded and fixed, and correspondingly, the drive shaft 33 is also expanded and contracted, so that the height of each conveyance mechanism 4 and 5 can be adjusted freely. struts 59 of mechanisms 13, 14;
The guide rods 63 and 64 also have a nested structure that can be expanded and fixed, and the heights of the guide rods 63 and 64 can be adjusted.

According to the above reaper, the heights of the chains 47, 48 of each conveying mechanism 4, 5 and the guide rods 63, 64 of each guide mechanism 13, 14 can be adjusted according to the culm length of crop A. The harvester 1 can be transported suitably without dropping the fruit, and the height of the reaper 1 can be lowered when traveling on the road.

As described in detail above, according to the present invention, during the reaping operation, the dropper bar is in the working position across the crop transport path, so that a predetermined amount of the transported crops is held and bundled. In this state, windrows can be made at predetermined intervals on one side of the vehicle body.

In addition, when driving on the road, the dropper bar is folded toward the vehicle body side around an axis approximately parallel to the direction of crop conveyance, and does not separate from the crop conveyance path and protrude outside the vehicle body, so it does not become a traveling obstacle. Since the rotational fulcrum of the dropper bar is around the axis that is approximately parallel to the direction of transport of the crops, not only can posture changes be made easily and accurately, but even when in the working posture, it is possible to move laterally outward from one side of the machine (vehicle body). It can be made compact without protruding too much. The present invention has the above-mentioned various advantages and is of great practical benefit.

[Brief explanation of the drawing]

The drawings of FIGS. 1 to 19 show an embodiment of the present invention, in which FIG. 1 is an overall right side view, FIG. 2 is an overall left side view, and FIG. 3 is a plan perspective view seen from the front. Fig. 4 is a plan view showing the lower transport mechanism, Fig. 5 is a plan view showing the upper transport mechanism, Fig. 6 is a side view of the main parts,
Fig. 7 is a schematic elevational view of the transmission (drive) mechanism of the cutting mechanism and the conveyance mechanism, Fig. 8 is a plan view of Fig. 7, and Fig. 9
The figure is a plan view showing the arrangement of the upper and lower transport mechanisms, Figure 10 is a perspective view of the main parts seen from the front, Figure 11 is a perspective view of the guide deck, and Figure 12 shows the relationship between the cutting mechanism and the guide deck. 13 is a partial plan view of FIG. 12, FIG. 14 is a plan view showing the relationship between the transport mechanism and the dropper mechanism, FIG. 15 is a side view of the dropper mechanism, and FIG. 16 is the dropper mechanism. Fig. 17 is a side view of the essential parts of the dropper mechanism with the dropper bar in the non-working position, Fig. 18 is a view taken along the Y arrow in Fig. 17, and Fig. 19 is with the dropper bar in the non-working position. FIG. 20, which is a plan view of the entire case, is a right side view of a reaper different from the present invention. DESCRIPTION OF SYMBOLS 1... Reaper, 2... Traveling vehicle body, 3... Cutting mechanism, 4, 5... Conveyance mechanism, 4A, 5A... Feeding start end, 4B, 5B... Delivery end, 16... Dropper mechanism , 92...Drotsperver, A...Crop.

Claims (1)

[Scope of utility model registration request] This is a reaping machine that cuts long culm crops such as corn, maize, and sorghum near the stock base and transports them, and a cutting mechanism 3 is provided at the front lower part of the traveling vehicle body 2 in the running direction, and above the cutting mechanism 3, Cut crop A
transport mechanisms 4 and 5 for transporting the
are provided, and the delivery end portions 4B,
In the reaper, a dropper mechanism 16 is provided on the 5B side, where the transported crop A is temporarily held by a dropper bar 92, and then bundled and dropped onto the ground.
A working posture in which the vehicle body 2 is extended to the one side and crosses the transport route for the crops A, and a work posture in which the vehicle body 2 is folded toward the travel vehicle body 2 side and separated from the transport route for the crops A.
The rotation fulcrum 92 is provided so that the posture can be changed freely to a non-working posture that does not protrude further outward.
A long culm crop reaping machine, characterized in that A is approximately parallel to the conveying direction of the crop A.